Author/Authors :
Pamer، E نويسنده Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21 000 Novi Sad, Serbia , , Vujovic، G نويسنده ACIMSI, University of Novi Sad, 21000 Novi Sad, Serbia , , Knezevic، P نويسنده Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21 000 Novi Sad, Serbia , , Kojic، D نويسنده Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21 000 Novi Sad, Serbia , , Prvulovic، D نويسنده Department of Field and Vegetable Crops, Faculty of Agriculture, Trg Dositeja Obradovica 8, 21000, Novi Sad, Serbia , , Miljanovic، B نويسنده Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21 000 Novi Sad, Serbia , , Grubor-Lajsic، G نويسنده Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21 000 Novi Sad, Serbia ,
Abstract :
This study focused on use of bacterial extracellular enzyme activities as biochemical parameters,
along with the microbiological and physicochemical characteristics, in a comprehensive assessment of water
quality of four lake ecosystems in the Province of Vojvodina (northern Serbia): Provala, Ludas, Zobnatica and
Palic. Water samples were collected in June and October, 2008. For assessment of microbiological water
quality, heterotrophic plate count, total and fecal coliform count, as well as total bacterial count was determined.
Based on microbiological parameters, the water ecosystems were appropriately classified. The following
extracellular enzyme activities were determined: alkaline phosphatase, B-D-glucosidase and acetate esterase
using fluorogenic 4-methylumbelliferone labeled substrates. The results showed that Provala Lake had the best
water quality taking in consideration all of the parameters, followed by Zobnatica, while Ludas and Palic had
a significant level of organic water pollution both in June and October. The results indicate that further similar
studies should include both microbiological and biochemical analyses, in order to obtain more relevant data on
water quality.
